<!DOCTYPE html>
<html>

<head>

</head>

<body>

    <div>
        top
    </div>
    <div>
        <div style="float: left;">left<br\>
        </div>
        <div>mid </div>
        <div style="float: right;">right </div>
    </div>
    <div>
        bottom
    </div>


</body>

</html>